CN206932322U - The signal circuit and display device of a kind of display device - Google Patents
The signal circuit and display device of a kind of display device Download PDFInfo
- Publication number
- CN206932322U CN206932322U CN201720885753.4U CN201720885753U CN206932322U CN 206932322 U CN206932322 U CN 206932322U CN 201720885753 U CN201720885753 U CN 201720885753U CN 206932322 U CN206932322 U CN 206932322U
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- Prior art keywords
- signal
- output
- screen
- video
- display device
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
Abstract
The utility model discloses a kind of signal circuit of display device, including master chip, signal shifter and video signal output interface;The vision signal of the peripheral hardware signal input part reception signal source output of master chip, the screen signal receiving end of the screen signal output part connection signal shifter of master chip, the command reception end of the instruction output end connection signal shifter of master chip;The vision signal of the peripheral hardware signal receiving end reception signal source output of signal shifter;The delivery end connection video signal output interface of signal shifter;Video signal output interface connects other display devices, exports vision signal.Correspondingly, a kind of display device for including above-mentioned signal circuit is also disclosed in the utility model, the utility model realizes that the vision signal of video output interface output is optional, allow this display device to show different video image with being connected to other display devices of video signal output interface, enrich the diversity of multi-screen interactive.
Description
Technical field
It the utility model is related to display technology field, more particularly to a kind of signal circuit of display device and display dress
Put.
Background technology
The flat board of some liquid crystal interaction at present is provided with video signal output interface, for believing to other display devices output video
Number, realize flat board and be connected to the display device simultaneous display video image of video signal output interface.Its realize principle be,
Master chip exports also to be exported to video signal output interface to the vision signal of screen.
But this scheme of prior art has limitation.Liquid crystal interaction plate technique is increasingly mature, can connect machine top
The outside sources such as box, computer and mobile phone simultaneously show the vision signal that outside source provides, and can also be set up inside flat board
The signal source such as PC modules or Android modules, interact flat board for liquid crystal and multiple operating systems and user interface are provided.These signals
Source meeting transmission video signal interacts the master chip of flat board to liquid crystal, and the master chip of liquid crystal interaction flat board can also generate video all the way
The video image of signal, the i.e. master operating system of its operation.It is master chip operation that the picture that current flat panel is shown, which may be selected, in user
Operating system video image or other signal sources provide video image.For this liquid crystal for having multi-channel video signal
Master chip is exported and also exported to video signal output interface to the vision signal of screen, then caused by interaction flat board, prior art
Exterior display device can only show synchronous consistent video image with liquid crystal flat-panel, it is impossible to freely select video image, limit
The diversity of multi-screen interactive.
Utility model content
The utility model embodiment provides a kind of signal circuit and display device of display device, to realize that video is defeated
The vision signal of outgoing interface output is optional so that this display device and the other display devices for being connected to video signal output interface
Different video image can be shown, enriches the diversity of multi-screen interactive.
In a first aspect, the utility model embodiment provides a kind of signal circuit of display device, including master chip,
Signal shifter and video signal output interface;
The master chip includes screen signal output part, switching command output end and at least one peripheral hardware signal input part;Institute
Stating signal shifter includes command reception end, screen signal receiving end, delivery end and at least one peripheral hardware signal receiving end;
The peripheral hardware signal input part of the master chip is used for the vision signal of reception signal source output, and the master chip is used for
The screen signal receiving end that vision signal connects the signal shifter to the screen signal output part of the screen of this display device is exported,
The master chip is used for the command reception end of the instruction output end connection signal shifter of output channel switching command;
The peripheral hardware signal receiving end of the signal shifter is used for the vision signal of reception signal source output;The signal is cut
The delivery end that parallel operation is used to export vision signal corresponding to the passage switching command connects the video signal output interface;
The video signal output interface is used to connect other display devices, exports vision signal.
Second aspect, the utility model embodiment provide a kind of display device, including screen driving plate, screen and above-mentioned
The signal circuit of display device;The screen driving plate includes video inputs and video output terminals;
The screen signal output part of the master chip connects the video inputs of the screen driving plate, and the screen driving plate regards
Frequency output end connects the screen.
For the utility model embodiment by setting up signal shifter in a display device, the signal shifter receives outside letter
The signal in number source, also receive master chip and export to the signal of screen, the passage switching command provided according to master chip selects corresponding
Passage, vision signal corresponding to output, solve signal of the signal with screen of prior art video signal output interface output
Must be synchronous consistent, it is impossible to the problem of freely selecting video image;The vision signal for realizing video output interface output can
Choosing, this display device can show different video image with being connected to other display devices of video signal output interface,
Enrich the multifarious effect of multi-screen interactive.
Brief description of the drawings
Fig. 1 is the structural representation of the signal circuit for the display device that the utility model embodiment one provides;
Fig. 2 is the structural representation of the signal circuit for the display device that the utility model embodiment two provides;
Fig. 3 is the structural representation for the display device that the utility model embodiment three provides.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than to restriction of the present utility model.Further need exist for
It is bright, for the ease of description, the part related to the utility model rather than entire infrastructure are illustrate only in accompanying drawing.
Embodiment one
Fig. 1 is the structural representation of the signal circuit for the display device that the utility model embodiment one provides.The letter
Number transmission circuit 10 includes master chip 11, signal shifter 12 and video signal output interface 13;Wherein, master chip 11 includes screen
Signal output part, switching command output end and at least one peripheral hardware signal input part;Signal shifter 12 includes screen signal and received
End, command reception end, delivery end and at least one peripheral hardware signal receiving end;Fig. 1 shows 3 signal sources, is signal source respectively
141st, signal source 142 and signal source 143, master chip 11 are correspondingly arranged on 3 peripheral hardware signal input parts, the correspondence of signal shifter 12
It is provided with 3 peripheral hardware signal receiving ends.
As shown in figure 1, the peripheral hardware signal input part of master chip 11 is used for the vision signal of reception signal source output, that is, connect
Peripheral hardware signal input part corresponding to the video signal transmission to master chip 11 exported to the signal source of signal circuit 10;
Master chip 11 is used to export screen signal output part connection signal switching of the vision signal to the screen of this display device
The screen signal receiving end of device 12, i.e. master chip 11 export (can be by display device to the vision signal of the screen of this display device
Input equipment is selected, it may be possible to which signal source is exported to the signal of master chip, it is also possible to the signal of master chip itself operating system)
Transmit to signal shifter 12;The peripheral hardware signal receiving end of signal shifter 12 is also used for the video letter of reception signal source output
Number, the vision signal for being attached to the signal source output of signal circuit 10 is also transmitted to signal shifter 12;Master chip 11
Instruction output end for output channel switching command CTL_Switch connects the command reception end of signal shifter 12.By upper
Annexation is stated, signal shifter 12 have received the vision signal of the screen of this display device and the video letter of signal source output
Number, it also have received passage switching command CTL_Switch, exportable video corresponding with passage switching command CTL_Switch
Signal, you can to export the vision signal consistent with the screen of this display device by passage switching command CTL_Switch selections,
Or the signal of output either signal source output.In the specific implementation, passage switching command CTL_Switch can exist according to user
Operation generation on the input equipment (such as keyboard, touch-screen etc.) of display device.For the strong display of some adaptive abilities
Device, master chip can also be set to automatically generate passage switching command CTL_Switch according to its mode of operation.
Signal shifter 12 is used for the delivery end connection video letter for exporting vision signal corresponding to the passage switching command
Number output interface 13;Video signal output interface 13 is used to connect other display devices, exports vision signal.
It should be noted that in the specific implementation, signal source needs while respectively transmission video signal to master chip 11
The peripheral hardware signal receiving end of peripheral hardware signal input part and signal shifter 12, vision signal it will be divided into two-path video signal all the way
Output, generally requires and is realized by video distributor.
Specifically, signal circuit 10 also includes at least one video distributor, each video distributor
Including an input and two output ends, i.e. the video distributor is one-in-and-two-out video distributor.Video is believed
The input of number distributor is used for connecting signal source;It is outer corresponding to the output end connection master chip 11 of video distributor
If signal input part, realize that the peripheral hardware signal input part of master chip 11 receives the vision signal of signal source output;Vision signal
The corresponding peripheral hardware signal receiving end of another output end connection signal shifter 12 of distributor, realizes signal shifter 12
Peripheral hardware signal receiving end receives the vision signal of signal source output.
To sum up, by setting up signal shifter in a display device, the signal shifter connects the technical scheme of the present embodiment
The signal of outside source is received, master chip is also received and exports to the signal of screen, the passage switching command provided according to master chip
Respective channel is selected, vision signal corresponding to output, solves the signal of prior art video signal output interface output with screen
The signal of curtain must be synchronously consistent, it is impossible to the problem of freely selecting video image, realizes the video of video output interface output
Signal is optional, and this display device can show different video with being connected to other display devices of video signal output interface
Image, enrich the multifarious effect of multi-screen interactive.
Embodiment two
Fig. 2 is the signal circuit for the display device that the utility model embodiment two provides.The present embodiment is in embodiment
On the basis of one, there is provided a kind of signal circuit for the liquid crystal interaction flat board for being applied to main flow in the market.Liquid crystal interacts
The video signal output interface of flat board typically uses HDMI output interface.
Specifically, in the present embodiment, signal circuit 20 includes master chip 21, signal shifter 22, HDMI and exports and connect
Mouth 23, HDMI input interfaces 243, VGA input interfaces 244 and at least one video distributor 25.Wherein signal switches
Device 22 is HDMI signal shifters.
In the present embodiment, there are four video distributors 25 so that the signal circuit can at most connect four simultaneously
Individual signal source, as shown in Fig. 24 signal sources are PC modules 241, Android modules 242, the institute of HDMI input interfaces 243 respectively
The exterior terminal that the exterior terminal and VGA input interfaces 244 of connection are connected.Wherein HDMI input interfaces 243 and VGA inputs connects
Mouth 244 belongs to video input interface, is to be used to connect exterior terminal, receives the interface for the vision signal that exterior terminal is sent, such as
Connect the terminals such as computer, mobile phone or set top box.And PC modules 241, Android modules 242 are can voluntarily to export vision signal
Module, be fixedly attached in signal circuit, can also it is pluggable installation on the display apparatus, they can be provided solely
Vertical operating system, the defeated of flat board is interacted when the signal of PC modules 241 or Android modules 242 is transmitted to master chip 21, liquid crystal
Which passage enters the video image that device may be selected to show on current liquid crystal interaction flat board is, is PC modules or Android
What the operation system interface that module provides, or the operation system interface of master chip itself, or video input interface were connected
The vision signal of terminal device.PC modules 241 and Android modules 242 provide multisystem operation for liquid crystal flat-panel.
The input of video distributor 25 is used for connecting signal source, and the vision signal all the way output it is divided into two-way
Vision signal exports, and is sent into the peripheral hardware signal input part of master chip 21 all the way, is sent into the peripheral hardware signal of signal shifter 22 all the way
Receiving terminal.Specifically, in the present embodiment, the input of one of video distributor 25 passes through HDMI input interfaces
243 connection exterior terminals (signal source), i.e. HDMI input interfaces 243 be connected to the input of the video distributor 25 with
Between exterior terminal;The input of another video distributor 25 connects exterior terminal (letter by VGA input interfaces 244
Number source), i.e., VGA input interfaces 244 are connected between the input and exterior terminal of the video distributor 25.Signal passes
Transmission of electricity road also turns HDMI chips 26 including VGA, and VGA turns HDMI chips 26 and is connected to VGA input interfaces 244 and vision signal distribution
Between the input of device 25 so that by the output that VGA input interfaces 244 provide to master chip 21 and the video of signal shifter 23
Signal is converted to HDMI signals, then it is all HDMI that four signal sources, which are exported to the vision signal of master chip 21 and signal shifter 23,
Signal.
Further, signal circuit also turns HDMI chips including VBO or LVDS turns HDMI chips 27.VBO turns HDMI
The screen signal that chip or LVDS turn screen signal output part and signal shifter 22 that HDMI chips 27 are connected to master chip 21 receives
Between end.Because the vision signal of master chip output is generally VBO signals or LVDS signals, it is therefore desirable to which VBO turns HDMI chips
Or LVDS turns HDMI chips 27 and enters row format conversion to export HDMI signals.
The present embodiment is identical with embodiment one, and signal shifter 22 receives the vision signal of each passage, and receives master chip
21 passage switching command CTL_Switch, export vision signal corresponding with passage switching command CTL_Switch and believe to video
Number output interface, i.e. HDMI output interface 23.So that other display devices that HDMI output interface 23 connects, can show all the time
This liquid crystal interaction flat board screen display vision signal, no matter screen display be which passage vision signal, all follow
Display;The vision signal of screen display, the vision signal that any signal source specified of display provides can not also be followed.Enrich
The diversity of multi-screen interactive.
It should be appreciated that the present embodiment illustrates that the work of signal circuit 20 is former by taking four different types of signal sources as an example
Reason, but in the specific implementation, the signal source that signal circuit 20 is connected can be one or more, might not
It is all, other signal sources outside this four signal sources to be can also be, specifically by those skilled in the art according to display device
Functional requirement set.
To sum up, by setting up signal shifter in a display device, the signal shifter connects the technical scheme of the present embodiment
The signal of outside source is received, master chip is also received and exports to the signal of screen, the passage switching command provided according to master chip
Respective channel is selected, vision signal corresponding to output, solves the signal of prior art video signal output interface output with screen
The signal of curtain must be synchronously consistent, it is impossible to the problem of freely selecting video image, realizes the video of video output interface output
Signal is optional, and this display device can show different video with being connected to other display devices of video signal output interface
Image, enrich the multifarious effect of multi-screen interactive.
Embodiment three
Fig. 3 is the structural representation for the display device that the utility model embodiment three provides.The display device includes screen and driven
Dynamic plate 32, screen 33 and signal circuit 31;The signal circuit 31 is the signal that embodiment one or embodiment two provide
Transmission circuit.The video inputs of the screen signal output part connection screen driving plate 32 of master chip, screen drive in signal circuit 31
The video output terminals connection screen 33 of dynamic plate 32, output vision signal are shown to screen 33.If included in signal circuit
VBO/LVDS turns HDMI chips, then VBO/LVDS turns the effect that HDMI chips also act as signal distributor, by master chip output
VBO/LVDS points are two paths of signals, switch to HDMI signals all the way and transmit to signal shifter, and another way is VBO/LVDS signals, are passed
Screen driving plate 32 is transported to, master chip is realized and shields the connection of driving plate 32.Preferably, the display device is that liquid crystal interacts flat board,
Screen driving plate is TCON plates.
The signal that the display device that the present embodiment is provided includes the display device that above-described embodiment one or two is provided passes
Transmission of electricity road, possesses corresponding beneficial effect.
It should be noted that in the case of not conflicting, those skilled in the art will can retouch in this specification
The different embodiments or example and the feature of different embodiments or example stated are combined and combined.
Pay attention to, above are only preferred embodiment of the present utility model and institute's application technology principle.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment here, can carry out for a person skilled in the art various obvious
Change, readjust and substitute without departing from the scope of protection of the utility model.Therefore, although by above example to this
Utility model is described in further detail, but the utility model is not limited only to above example, is not departing from this reality
In the case of with new design, other more equivalent embodiments can also be included, and the scope of the utility model is by appended power
Sharp claimed range determines.
Claims (9)
1. a kind of signal circuit of display device, it is characterised in that defeated including master chip, signal shifter and vision signal
Outgoing interface;
The master chip includes screen signal output part, switching command output end and at least one peripheral hardware signal input part;The letter
Number switch includes screen signal receiving end, command reception end, delivery end and at least one peripheral hardware signal receiving end;
The vision signal of the peripheral hardware signal input part reception signal source output of the master chip, the master chip are used to export video
The screen signal output part of signal to the screen of this display device connects the screen signal receiving end of the signal shifter, the main core
Piece is used for the command reception end of the instruction output end connection signal shifter of output channel switching command;
The vision signal of the peripheral hardware signal receiving end reception signal source output of the signal shifter;The signal shifter is used for
The delivery end for exporting vision signal corresponding to the passage switching command connects the video signal output interface;The video letter
Number output interface is used to connect other display devices, exports vision signal.
2. the signal circuit of display device as claimed in claim 1, it is characterised in that the signal circuit also wraps
Include at least one video distributor;Each video distributor includes an input and two output ends;
The input of the video distributor is used for connecting signal source;One output end of the video distributor connects
The corresponding peripheral hardware signal input part of the master chip is connect, realizes that the peripheral hardware signal input part of the master chip receives the signal source
The vision signal of output;Another output end of the video distributor connects the corresponding peripheral hardware of the signal shifter
Signal receiving end, realize that the peripheral hardware signal receiving end of the signal shifter receives the vision signal of signal source output.
3. the signal circuit of display device as claimed in claim 2, it is characterised in that the signal circuit also wraps
HDMI input interfaces are included, the input of one of them video distributor passes through described in HDMI input interfaces connection
Signal source;The signal shifter is HDMI signal shifters;The video signal output interface is HDMI output interface.
4. the signal circuit of display device as claimed in claim 2, it is characterised in that the signal circuit also wraps
Include VGA input interfaces;The input of one of them video distributor connects the letter by the VGA input interfaces
Number source;The signal shifter is HDMI signal shifters;The video signal output interface is HDMI output interface;
The signal circuit also turns HDMI chips including VGA;The VGA turns HDMI chips and is connected to VGA input to connect
Between mouth and the input of the video distributor.
5. the signal circuit of display device as claimed in claim 2, it is characterised in that one of vision signal distribution
PC module or Android module of the signal source of the input connection of device for pluggable installation on said display means.
6. the signal circuit of the display device as described in any one of claim 3 to 5, it is characterised in that the master chip
Screen signal output part output signal be VBO vision signals;
The signal circuit also turns HDMI chips including VBO;The VBO turns the screen that HDMI chips are connected to the master chip
Between signal output part and the screen signal receiving end of the signal shifter.
7. the signal circuit of the display device as described in any one of claim 3 to 5, it is characterised in that the master chip
Screen signal output part output signal be LVDS vision signals;
The signal circuit also turns HDMI chips including LVDS;The LVDS turns HDMI chips and is connected to the master chip screen
Between signal output part and the screen signal receiving end of the signal shifter.
8. a kind of display device, it is characterised in that including screen driving plate, screen and showing as described in any one of claim 1 to 7
The signal circuit of showing device;The screen driving plate includes video inputs and video output terminals;
The screen signal output part of the master chip connects the video inputs of the screen driving plate, and the video of the screen driving plate is defeated
Go out end and connect the screen.
9. display device as claimed in claim 8, it is characterised in that the display device is that liquid crystal interacts flat board, the screen
Driving plate is TCON plates.
Priority Applications (2)
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CN201720885753.4U CN206932322U (en) | 2017-07-20 | 2017-07-20 | The signal circuit and display device of a kind of display device |
PCT/CN2017/103244 WO2019015090A1 (en) | 2017-07-20 | 2017-09-25 | Signal transmission circuit of display apparatus, and display apparatus |
Applications Claiming Priority (1)
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CN201720885753.4U CN206932322U (en) | 2017-07-20 | 2017-07-20 | The signal circuit and display device of a kind of display device |
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Cited By (1)
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CN113114298A (en) * | 2021-03-31 | 2021-07-13 | 德氪微电子(深圳)有限公司 | Display device adopting millimeter wave communication |
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JP2007208872A (en) * | 2006-02-06 | 2007-08-16 | Seiko Epson Corp | Display control apparatus and television |
CN201829175U (en) * | 2010-10-18 | 2011-05-11 | 深圳市诺威达科技有限公司 | Vehicle-mounted multi-screen interaction system |
CN102263998A (en) * | 2011-07-11 | 2011-11-30 | 深圳市同洲电子股份有限公司 | Receiving method and device for digital television |
CN103257837B (en) * | 2012-02-20 | 2018-02-27 | 联想(北京)有限公司 | The method and electronic equipment of a kind of display data |
CN103813203A (en) * | 2014-02-25 | 2014-05-21 | 广州视源电子科技股份有限公司 | Family television multi-screen display system |
CN106528014A (en) * | 2015-09-15 | 2017-03-22 | 中兴通讯股份有限公司 | Method and system for implementing multi-screen display |
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2017
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CN113114298A (en) * | 2021-03-31 | 2021-07-13 | 德氪微电子(深圳)有限公司 | Display device adopting millimeter wave communication |
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